Booklouse

Damp, humid environments such as basements, crawl spaces, and under wallpaper; often found near old books, cardboard, or stored food products.

Microscopic fungi (mold and mildew), grain dust, dead insects, and starch-based adhesives like book glue.

Fast-running wingless insects that thrive in high humidity (>60%). They do not build nests but congregate where food and moisture are present.

Generally harmless to humans and pets as they do not bite or transmit disease; however, they can contaminate food and are considered a nuisance indicator of moisture problems.